Engine Conversion

EngineConversionPropane is today's smart, green fuel, though it is not a new concept. It has been used in vehicles for decades. We at the Stanford LP Gas Motor Fuel Division have been working with propane, or autogas, in vehicle fuel systems for many years. We know what works and what doesn't, and we'll answer your questions to determine if your fleet on propane makes economic sense for you.

We make your transition to a cleaner fuel as convenient as possible.


Finished Conversions 


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Main Office

3611 N. Eastman Road
Midland, MI  48642
 8 a.m.-4:30 p.m. M-F

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Gladwin Office

1420 W. M-61
Gladwin, MI 48624
Ph: 989-426-5000
Fax: 989-426-2926
Hours: 8 a.m.-4:30 p.m. M-F 

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Meet the Director

Gary Shepherd, director of the Stanford LP Gas Motor Fuel Division, has been developing alternative fuel systems for more than 16 years. He has worked with General Motors, Ford, Chrysler Canada, Detroit Diesel and Cummins Engines on their respective engine systems using clean-burning propane.

He assisted Freightliner Custom Chassis in design and specifications for its propane-powered transit busses, which are built at its plant in Gaffney, S.C. He has designed various OEM-approved propane fuel systems for Freightliner transit busses. New propane chassis are shipped to Midland, MI, where Gary resides, for the propane system installation. They are then shipped on to the body builder for completion.

Gary has worked with several colleges and universities in writing curriculum for proper training and installation of propane fuel systems. He is a member of the National Propane Gas Association, an advisor on fuel systems to the Propane Education and Research Council, chairman of the Engine Fuel Committee, and past president of the Michigan Propane Gas Association.

Our Pledge


At Stanford LP Gas, we feel our responsibility to our Family of Customers goes beyond just selling you fuel. We operate today on the same time-honored traditions of my father by providing excellent customer service, competitive pricing and peace of mind.


Our Customer Bill of Rights is just one way we work toward fulfilling our responsibility to our customers.

Thank you for considering Stanford LP Gas.

Duane Stanford, CEO